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LM27761: Can you provide a typical value of Rsw to use for Rout in equation 1

MG74275
Intellectual 290 points
Part Number: LM27761

I cannot find a typical value in the data sheet.

  • 0
    TI__Guru**** 150650 points
    Hi MG,

    It looks like we don't break this out but we can calculate the typical value from Equation 1 and Figure 19. The typical total output impedance is 2 Ohm.

    The flying cap (of 1 uF) contributes 1/2 an Ohm. So Rsw works out to be 0.75 Ohm.